Laser processing effect on magnetic properties of amorphous wires
Controllable, spatially selective treatment of glass-covered amorphous magnetic wires by laser irradiation is demonstrated. Local annealing by an argon laser has resulted in the formation of weakly in...
Controllable, spatially selective treatment of glass-covered amorphous magnetic wires by laser irradiation is demonstrated. Local annealing by an argon laser has resulted in the formation of weakly in...
Modulation of the peak effect in melt-processed (Sm1–xEux)Ba2Cu3O7–
superconductors with compositional fluctuation
The peak effect in melt-processed (Sm1–xEux)Ba2Cu3O7– crystals was modified with varying initial Sm/Eu ratios and was investigated up to 9 T down to 4.2 K. The experiment unveiled a linearly...
superconductors with compositional fluctuationThe peak effect in melt-processed (Sm1–xEux)Ba2Cu3O7– crystals was modified with varying initial Sm/Eu ratios and was investigated up to 9 T down to 4.2 K. The experiment unveiled a linearly...
Perovskite oxide tricolor superlattices with artificially broken inversion symmetry by interface effects
Appl. Phys. Lett. 81, 4793 (2002); doi:10.1063/1.1530734
Issue Date: 16 December 2002
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We have designed and fabricated spin superlattices composed of three kinds of perovskite oxides: ferromagnetic La0.6Sr0.4MnO3 (LSMO) sandwiched by two nonmagnetic insulators, SrTiO3 (STO), and LaAlO3 (LAO). Conventional superlattices, structured as alternating stack of two components, preserve centrosymmetry. By stacking three compounds repeatedly in an asymmetric sequence such as (LAO/LSMO/STO)n, one can break the inversion symmetry. Magnetic and transport properties of the superlattices clearly indicate that the STO and LAO layers modulate the ferromagnetic spin order in LSMO layers adjacent to the interfaces in a different manner, giving rise to broken inversion symmetry of magnetic structure in the (LAO/LSMO/STO)n superlattices. ©2002 American Institute of Physics.
| History: | Received 11 October 2002; accepted 28 October 2002 |
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http://link.aip.org/link/?APPLAB/81/4793/1 |
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BibSonomy
KEYWORDS and PACS
lanthanum compounds,
strontium compounds,
ferromagnetic materials,
magnetic multilayers,
interface structure,
pulsed laser deposition,
colossal magnetoresistance,
magnetisation
- 75.70.Cn
Magnetic properties and materials Magnetic properties of thin films, surfaces, and interfaces Interfacial magnetic properties (multilayers, superlattices) - 75.50.Dd
Magnetic properties and materials Studies of specific magnetic materials Nonmetallic ferromagnetic materials - 68.65.Ac
Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties) Low-dimensional, mesoscopic, and nanoscale systems: structure and nonelectronic properties Multilayers - 68.35.Ct
Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties) Solid surfaces and solid-solid interfaces: Structure and energetics Interface structure and roughness - 81.15.Fg
Materials science Methods of deposition of films and coatings; film growth and epitaxy Laser deposition - 85.75.-d
Electronic and magnetic devices; microelectronics Magnetoelectronics: devices exploiting spin polarized transport or integrated magnetic fields - 75.60.Ej
Magnetic properties and materials Domain effects, magnetization curves, and hysteresis Magnetization curves, hysteresis, Barkhausen and related effects - YEAR: 2002
RELATED DATABASES
PUBLICATION DATA
0003-6951 (print)
1077-3118 (online)
AIP
REFERENCES (11)
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- Broken inversion symmetry is proved by a preliminary experiment of second harmonic generation (SHG) using 800 nm 100 fs laser pulses. SHG signal from the 10 u.c. "tricolor" superlattice is roughly 10 times as large as that for the "bicolor" superlattices.
